13231254724 has 12 divisors (see below), whose sum is σ = 23220292284. Its totient is φ = 6596885504.

The previous prime is 13231254721. The next prime is 13231254749. The reversal of 13231254724 is 42745213231.

It can be written as a sum of positive squares in 2 ways, for example, as 1790813124 + 11440441600 = 42318^2 + 106960^2 .

It is a super-2 number, since 2×13231254724² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13231254724.

It is not an unprimeable number, because it can be changed into a prime (13231254721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4683877 + ... + 4686700.

It is an arithmetic number, because the mean of its divisors is an integer number (1935024357).

Almost surely, 2^13231254724 is an apocalyptic number.

It is an amenable number.

13231254724 is a deficient number, since it is larger than the sum of its proper divisors (9989037560).

13231254724 is a wasteful number, since it uses less digits than its factorization.

13231254724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9370934 (or 9370932 counting only the distinct ones).

The product of its digits is 40320, while the sum is 34.

Adding to 13231254724 its reverse (42745213231), we get a palindrome (55976467955).

The spelling of 13231254724 in words is "thirteen billion, two hundred thirty-one million, two hundred fifty-four thousand, seven hundred twenty-four".